Legal claims defining the scope of protection, as filed with the USPTO.
1. A method comprising: initiating a client in a secure enclave; requesting, by the client, digital rights management (DRM) provisioning information from a provisioning server; receiving, by the client from the provisioning server, a first key component; requesting, by the client, authentication by a verification server; generating, by the client, a second key component; providing, by the client, proof of authentication to the provisioning server; sending, by the client to the provisioning server, the second key component; generating, by the client, a shared secret key; receiving, by the client, the DRM provisioning information; decrypting, by the client, the DRM provisioning information using the shared secret key; sealing the DRM provisioning information to the secure enclave; storing the sealed DRM provisioning information in a non-volatile memory; unsealing the DRM provisioning information in the secure enclave; and using, by the client, content from a content server without repeating the requesting of DRM provisioning information from the provisioning server.
2. The method of claim 1 , wherein the digital rights management information includes a Digital Transmission Content Protection key.
3. The method of claim 1 , wherein the authentication involves an Enhanced Protection ID algorithm.
4. The method of claim 1 , further comprising generating, by the client, an identity report.
5. The method of claim 4 , further comprising signing, by the client using an Enhanced Protection ID (EPID) private key, the identity report.
6. The method of claim 5 , wherein requesting authentication includes sending the signed identity report to the verification server.
7. The method of claim 6 , further comprising receiving, by the client from the verification server, proof of authentication, wherein the authentication involves verifying the signed identity report.
8. The method of claim 7 , wherein verifying the signed identity report uses an EPID public key corresponding to the EPID private key.
Unknown
April 14, 2015
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